@article{harley_guenther_zimmerman_1996, 
  title={Effects of light, temperature and canopy position on net photosynthesis and isoprene emission from sweetgum (Liquidambar styraciflua) leaves}, 
  volume={16}, 
  DOI={10.1093/treephys/16.1-2.25}, 
  number={1-2}, 
  publisher={Oxford University Press (OUP)}, 
  author={Harley and Guenther and Zimmerman}, 
  year={1996}, 
  month={Jan}
  }